(STAR CITY, W. Va.) -- A close family friend of Rachel Shoaf, one of two teens now in prison for stabbing 16-year-old Skylar Neese to death, said that she is still reeling from the fact that a young girl she helped raise, whom she described as having a lot of promise, is a convicted murderer.

“There was never any sign. Not a mean kid, not a bully, didn’t torture animals, and it’s been a long two years trying to come to grips,” Kelly Kerns told ABC News’ 20/20. “With all of the potential and morals, I don’t even get where this came from.